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scsi: qla2xxx: Fix driver unload by shutting down chip

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Use chip shutdown at the start of unload to stop all DMA + traffic and
bring down the laser. This prevents any link activities from triggering the
driver to be re-engaged.

Fixes: 4b60c82736 ("scsi: qla2xxx: Add fw_started flags to qpair")
Cc: <stable@vger.kernel.org> #4.16
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran
2018-07-18 14:29:53 -07:00
committed by Martin K. Petersen
parent efa93f48fa
commit 45235022da
5 changed files with 34 additions and 28 deletions
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6
drivers/scsi/qla2xxx/qla_mbx.c
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@@ -4220,6 +4220,9 @@ qla25xx_init_req_que(struct scsi_qla_host *vha, struct req_que *req)
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d3,
"Entered %s.\n", __func__);
@@ -4289,6 +4292,9 @@ qla25xx_init_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
mbx_cmd_t *mcp = &mc;
struct qla_hw_data *ha = vha->hw;
if (!ha->flags.fw_started)
return QLA_SUCCESS;
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10d6,
"Entered %s.\n", __func__);